quotaon: Quota format not supported in kernel.

When I run "quotaon -avug" as described in "The perfect server" guide I get following error:

Code:

quotaon: using //quota.group on /dev/sda1 [/]: No such process
quotaon: Quota format not supported in kernel.
quotaon: using //quota.user on /dev/sda1 [/]: No such process
quotaon: Quota format not supported in kernel.

By searching this site I found another thread which covers the same issue:

aquota is used on Redhat like systems
quota is used on Debian like systems
there is no difference in function, just different syntax.. you can try "repquota -a" command to see actual quotas on your system